When we think of color in the night sky, we often think of beautiful images of galaxies and nebulae. Unfortunately, most of the time, their faint, diffuse light shows no color to our human eyes. Stars ...

Learn more about what a star’s color means and while you’ll rarely see a twinkling green star in the night sky. When looking up on a cloudless night, do you notice that stars can sometimes show as ...

For the quickest way to join, enter your email below. We’ll send a confirmation email and sign you up to Space.com newsletters with the latest inspiration, expert advice and exclusive offers.